1. BS 7910:2013. Guide for assessing the significance of flaws in metallic structures. London: British Standards Institution; 2013.
2. R6. Assessment of the integrity of structures containing defects. Revision 4. Glouceste: British Energy; 2001.
3. The assessment of defects in structures of strain hardening material;Ainsworth;Eng Fract Mech,1984
4. Assessment of flaws in pipeline girth welds – a critical review;Pisarski;Weld World,2013
5. DNV-RP-F108. Offshore standard – fracture control for pipeline installation methods introducing cyclic plastic strain. Det Norske Veritas, Hovik, Norway; 2006.